ASN logo
ASN Wikibase Occurrence # 32996
Last updated: 30 June 2019
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:23-APR-1983
Time:09:22 LT
Type:Silhouette image of generic BE36 model; specific model in this crash may look slightly different
Beechcraft A36 Bonanza
Owner/operator:Southern Air Services
Registration: VH-DAJ
C/n / msn:
Fatalities:Fatalities: 5 / Occupants: 5
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Mount William, 43 km NW of Melbourne Airport, Victoria -   Australia
Phase: En route
Nature:Private
Departure airport:Moorabbin, Melbourne (MBW/YMMB)
Destination airport:Bankstown, Sydney, NSW (BWU/YSBK)
Investigating agency: BASI
Narrative:
On 23 April 1983, the pilot of Beechcraft A36 Bonanza, Registration VH-DAJ, and his four passengers had planned a trip to Sydney and return for the Anzac Day long weekend. In
preparation for the trip the pilot obtained a flight check in a Beech Bonanza aircraft. On the morning of the accident the pilot obtained weather forecasts for the route to be flown, prepared a
flight plan for the trip and submitted it to the Briefing Officer at Moorabbin Airport at 0755 hours.

The flight plan indicated that the aircraft would proceed to the first nominated reporting point at
Mangalore outside Melbourne Controlled Airspace and at an altitude below 5,000 feet above mean
sea level (amsl). When the pilot submitted the flight plan he was advised by the Briefing Officer that
the route through the Kilmore Gap was not suitable for flight under visual meteorological conditions
(VMC).

The pilot agreed to delay his DEPARTURE until conditions improved in the Kilmore Gap. The pilot and
passengers then proceeded to the aircraft and after loading, the aircraft was taxied for take-off.
The DEPARTURE time from Moorabbin was reported by the pilot as 0900 hours. No request for any
update of the weather situation in the Kilmore Gap area had been received from the pilot before
DEPARTURE.

Shortly after DEPARTURE the aircraft was identified on Melbourne radar after having inadvertently
entered Melbourne Control Zone. The pilot was instructed to maintain the aircraft's present
altitude and heading, until about four minutes later at 0908 hours when the pilot was cleared to
resume his own navigation after reporting he had Yan Yean reservoir in sight.

At about 0918 hours VH-DAJ was observed over Kilmore at an altitude of approximately 600 feet
above ground level (agl), heading in a north-westerly direction. Shortly afterwards the pilot was
asked by Melbourne Flight Service for his appreciation of the weather in the Kilmore Gap.

In reply the pilot advised he was unsure of the aircraft's location and was going to carry out a 180
degree turn, he also requested the aircraft's bearing from Melbourne. The pilot was then advised
that the aircraft was not within radar coverage and asked if the aircraft could be climbed to 4,000
feet amsl and remain in VMC, to which the pilot replied that the aircraft was not in VMC at that
time.

The pilot was then advised that three minutes earlier his aircraft had been 30 nautical miles north
of Melbourne and that if he turned to the south the aircraft would be expected to come within
radar coverage shortly. Two minutes later Melbourne Flight Service asked the pilot the direction
and the altitude at which the aircraft was flying.

The pilot answered that the heading was "one two zero" and then that the aircraft's level was "two
thousand", this was the last transmission received from the aircraft. Weather in the area at the
time was reported as low cloud and rain. The search for the aircraft was hampered by the weather.
The wreckage was finally located by a motor bike rider later in the afternoon.

The initial impact had been in a slight right wing low attitude on a heading of approximately 135
degrees at a height of 2,180 feet amsl on the slopes of Mt William, the top of which is 2,639 feet
amsl. After the initial impact the aircraft had rolled inverted before striking the ground again, 70
metres beyond the initial point of impact.

Fire broke out and engulfed the wreckage. The investigation did not reveal any fault with the
aircraft that would have contributed to the accident. Witnesses in the area reported that the
position VH-DAJ struck the ground was shrouded by cloud at the time of the accident.

ATSB Conclusions:
1. The prevailing weather conditions, along the route flown by VH-DAJ were unsuitable for flight in
Visual Meteorological Conditions (VMC), beyond the Kilmore Area.
2. The pilot was not qualified to conduct flight in other than Visual Meteorological Conditions (VMC)
3. The pilot continued flight into adverse weather conditions.
4. The pilot was inexperienced on aircraft with a relatively high cruising speed, such as VH-DAJ

Sources:

1. [LINK NOT WORKING ANYMORE:http://atsb.com.au/publications/investigation_reports/1983/aair/aair198302279.aspx]
2. https://www.flightglobal.com/pdfarchive/view/1983/1983%20-%201278.html
3. https://www.flightglobal.com/pdfarchive/view/1984/1984
4. https://www.atsb.gov.au/media/27716/aair198302279.pdf

Accident investigation:
cover
  
Investigating agency: BASI
Status: Investigation completed
Duration:
Download report: Final report


Revision history:

Date/timeContributorUpdates
27-Sep-2008 01:00 ASN archive Added
15-Apr-2014 19:09 Dr. John Smith Updated [Time, Aircraft type, Location, Phase, Nature, Departure airport, Destination airport, Source, Narrative]
15-Apr-2014 19:12 Dr. John Smith Updated [Narrative]

Corrections or additions? ... Edit this accident description